If you donīt like smoothmotion, use custom refresh rates according to your video material and according to the capabilities of your monitor.
For 23.976fps movies use refresh rate 23.976Hz OR 47.952Hz OR 71.928Hz OR ... Which one doesnīt matter, use the one your monitor accepts.
So a full set of refresh rates for all possible common movie frame rates would mean e.g. 47.952Hz (->23.976fps), 48.000Hz (->24.000fps, 48.000fps), 50.000Hz (->25.000fps, 50.000fps), 59.94Hz (->29.970fps, 59.940fps), 60.000Hz (->30.000fps, 60.000fps). Or other multiples if your monitor doesnīt accept these ones.
72Hz with no switching only works correctly for 24.000fps movies, so thatīs no option when wanting judder free playback and not using smoothmotion.
The default 60Hz are usually in reality 59.94Hz, so with your default "60 Hz" and 48 Hz you could only playback 29.970 fps, 59.940fps, 24.000fps and 48.000fps correctly.
It depends on your video material, but for all possible scenarios you would need the 5 custom refresh rates, see above.
I wouldnīt use the term "overclocking" in this context. Ok, a colcok of 72Hz is higher than the "default 60Hz", but there arenīt the same principles like overclocking e.g. a GPU or a CPU (which gives more temperature and more electrical stress on the components). A monitor accepts a given refresh rate by the computer or not. A higher refresh rate doesnīt do any harm or is dangerous. The worst thing that could happen is, that you have to do a safe boot because of getting a black screen when using a custom resolution your monitor doesnīt accept. But thatīs it. Use whatever your monitor can display correctly.

72hz and reclock works very well, I have no repeated or dropped frames for around 12 hours. Reclock likes 24 multiple refresh rates.

72hz and reclock works very well, I have no repeated or dropped frames for around 12 hours. Reclock likes 24 multiple refresh rates.

Reclock simply likes it "close enough" so you won't notice. It would change the audio speed less if you used a multiple of 23.976 Hz instead of 72 (at least for 24/1.001 fps content). Not that it is important, but Reclock is for when you cannot match your refresh rates, it is like smooth motion for the audio.

edit: actually that analogy isn't very good, Reclock cannot deal with 24 fps into 60 Hz but it is good for 29.97 fps at 60 Hz, where smooth motion is also good for preventing dropped frames.

Reclock simply likes it "close enough" so you won't notice. It would change the audio speed less if you used a multiple of 23.976 Hz instead of 72 (at least for 24/1.001 fps content). Not that it is important, but Reclock is for when you cannot match your refresh rates, it is like smooth motion for the audio.

edit: actually that analogy isn't very good, Reclock cannot deal with 24 fps into 60 Hz but it is good for 29.97 fps at 60 Hz, where smooth motion is also good for preventing dropped frames.

So a refresh rate of 71.928hz will do better than 72hz? I mostly watch 23.976 content.

So a refresh rate of 71.928hz will do better than 72hz? I mostly watch 23.976 content.

If you create your custom refresh rates in madVR, following madshi's tutorial for optimizing those refresh rates, you'll likely end up with a resolution that produces less than 1 repeated frame every 3-4 hours (or better). At that point, you'll have no need for Reclock.

One of the advantages of this is that by removing 32-bit Reclock, you can then use all 64-bit components in your playback chain.

If you create your custom refresh rates in madVR, following madshi's tutorial for optimizing those refresh rates, you'll likely end up with a resolution that produces less than 1 repeated frame every 3-4 hours (or better). At that point, you'll have no need for Reclock.

One of the advantages of this is that by removing 32-bit Reclock, you can then use all 64-bit components in your playback chain.

That's good, but sometimes I watch tv shows at 25 fps, slowing them down to 24 fps with reclock.

Any chance there will ever be extra slots for different 3DLUT's? I have encountered several displays that require different 3DLUT's/calibration for different refresh rate modes. The 48/72/96Hz refresh rate modes on TV's without full calibration controls require re-calibration for that mode. I have a TV like that and I change change 3DLUT's in settings depending on whether I watch 23/24p content (48Hz mode) or 29/30/60p (60Hz mode) content, but it would be nice if madVR had the option to set specific 3DLUT's for specific display modes. I think 3DLUT option for 23/24p mode and 29/30/60p mode would be perfect!

make sure your device of choice doesn't have thermal throttling issues(sadly not uncommon for small factor intel devices) and you are not going to do more than FHD.

The i7 models include a fan and 3 power modes one of which is "Best Performance" that runs the processor/igpu at full speed so no throttling. Don't know how loud it is though.

No more than FHD? Not 4k? The specs here https://support.microsoft.com/en-us/...?os=windows-10 show the Surface Pro can output 4k@60Hz 4096x2304. Are you saying the new Surface Pro 2017 with the configuration I'm thinking about w/i7, Iris Plus 640, 8GB isn't powerful enough to run madVR at 4k?

1. I would know why madVR, when i use NGU 4x, after oversize, downscale image two times in luma y with some source resolutions?

Aspect ratio correction. The doubling algorithms can only, well, double - they can't deal with rectangular pixels. So madVR has to adjust them at the end using an algorithm that can deal with them (like Bicubic150).

However, madVR's OSD is regularly showing much higher values than 323 cd/m2, and even the credits at the end with pale white text on black show 170-200 cd/m2.
Is the OSD 'correcting' the values somehow, or is MediaInfo reporting wrong values?